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<li class="navelem"><a class="el" href="../../d2/d75/namespacecv.html">cv</a></li><li class="navelem"><a class="el" href="../../da/d35/classcv_1_1Range.html">Range</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<div class="title">cv::Range Class Reference<div class="ingroups"><a class="el" href="../../d0/de1/group__core.html">Core functionality</a> &raquo; <a class="el" href="../../dc/d84/group__core__basic.html">Basic structures</a></div></div>  </div>
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<p>Template class specifying a continuous subsequence (slice) of a sequence.  
 <a href="../../da/d35/classcv_1_1Range.html#details">More...</a></p>

<p><code>#include &lt;opencv2/core/types.hpp&gt;</code></p>
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Inheritance diagram for cv::Range:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:aafab1fe471bac7c314dcd0d678ac4e2d"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#aafab1fe471bac7c314dcd0d678ac4e2d">Range</a> ()</td></tr>
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<tr class="memitem:abfd8e210d1dfcbdf4e34224a621a6236"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#abfd8e210d1dfcbdf4e34224a621a6236">Range</a> (int _start, int _end)</td></tr>
<tr class="separator:abfd8e210d1dfcbdf4e34224a621a6236"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af17854e9243042f39ae1c7a5ef5f7600"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#af17854e9243042f39ae1c7a5ef5f7600">empty</a> () const</td></tr>
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<tr class="memitem:a202fc148a0ad8df135215ecf1781a0b8"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#a202fc148a0ad8df135215ecf1781a0b8">size</a> () const</td></tr>
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Static Public Member Functions</h2></td></tr>
<tr class="memitem:af5a0207f6f98a69077db8e77898abc0f"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="../../da/d35/classcv_1_1Range.html">Range</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#af5a0207f6f98a69077db8e77898abc0f">all</a> ()</td></tr>
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Public Attributes</h2></td></tr>
<tr class="memitem:aba16789fec81858a31c9685d399b62fc"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#aba16789fec81858a31c9685d399b62fc">end</a></td></tr>
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<tr class="memitem:ad7ce51f1d8797236c97bec49d2b25522"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d35/classcv_1_1Range.html#ad7ce51f1d8797236c97bec49d2b25522">start</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Template class specifying a continuous subsequence (slice) of a sequence. </p>
<p>The class is used to specify a row or a column span in a matrix ( <a class="el" href="../../d3/d63/classcv_1_1Mat.html" title="n-dimensional dense array class ">Mat</a> ) and for many other purposes. Range(a,b) is basically the same as a:b in Matlab or a..b in Python. As in Python, start is an inclusive left boundary of the range and end is an exclusive right boundary of the range. Such a half-opened interval is usually denoted as \([start,end)\) .</p>
<p>The static method <a class="el" href="../../da/d35/classcv_1_1Range.html#af5a0207f6f98a69077db8e77898abc0f">Range::all()</a> returns a special variable that means "the whole sequence" or "the
whole range", just like " : " in Matlab or " ... " in Python. All the methods and functions in OpenCV that take <a class="el" href="../../da/d35/classcv_1_1Range.html" title="Template class specifying a continuous subsequence (slice) of a sequence. ">Range</a> support this special <a class="el" href="../../da/d35/classcv_1_1Range.html#af5a0207f6f98a69077db8e77898abc0f">Range::all()</a> value. But, of course, in case of your own custom processing, you will probably have to check and handle it explicitly: </p><div class="fragment"><div class="line"><span class="keywordtype">void</span> my_function(..., <span class="keyword">const</span> <a class="code" href="../../da/d35/classcv_1_1Range.html#aafab1fe471bac7c314dcd0d678ac4e2d">Range</a>&amp; r, ....)</div><div class="line">{</div><div class="line">    <span class="keywordflow">if</span>(r == <a class="code" href="../../da/d35/classcv_1_1Range.html#af5a0207f6f98a69077db8e77898abc0f">Range::all</a>()) {</div><div class="line">        <span class="comment">// process all the data</span></div><div class="line">    }</div><div class="line">    <span class="keywordflow">else</span> {</div><div class="line">        <span class="comment">// process [r.start, r.end)</span></div><div class="line">    }</div><div class="line">}</div></div><!-- fragment --> </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="aafab1fe471bac7c314dcd0d678ac4e2d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aafab1fe471bac7c314dcd0d678ac4e2d">&#9670;&nbsp;</a></span>Range() <span class="overload">[1/2]</span></h2>

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        </tr>
        <tr>
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          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>_end</em>&#160;</td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#af5a0207f6f98a69077db8e77898abc0f">&#9670;&nbsp;</a></span>all()</h2>

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          <td class="memname">static <a class="el" href="../../da/d35/classcv_1_1Range.html">Range</a> cv::Range::all </td>
          <td>(</td>
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          <td></td>
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<h2 class="memtitle"><span class="permalink"><a href="#af17854e9243042f39ae1c7a5ef5f7600">&#9670;&nbsp;</a></span>empty()</h2>

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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aba16789fec81858a31c9685d399b62fc">&#9670;&nbsp;</a></span>end</h2>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>opencv2/core/<a class="el" href="../../db/dfc/modules_2core_2include_2opencv2_2core_2types_8hpp.html">types.hpp</a></li>
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